Type-writing machine.



No. 793,672. PATENTED JULY 4, 1905.

` W. J. LYTER.

TYPE WRITING MACHINE.

APPLICATION FILED MAR. 3, 1904.

ttazwgy STATES Patented July 4, 1905.

PATENT i OFFICE.

IVALTER J. LYTER, OF LOUISVILLE, KENTUCKY, ASSIGNOR TO I/VYOKOFF,SEAMANS '& BENEDICT, OF ILION, NEW YORK, A CORPORATION OF NEV YORK.

TYPE-WRITING IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 793,672, dated July 4,1905.

Application file-d March 3, 1904. Serial No. 1961273' y To /tZ/'14111.0711/ 71+/ 717/04/ cm1/cern.-

Be it known that LWALTER J. LYTER, acitizen of the United States, and aresident of Louisville, in the county of Jefferson and State ofKentucky, have invented certain new and useful Improvements inType-Writing Machines, of which the following is a specification.

. section on the line 1/ y of Fig. 1.

My invention relates to ribbon-spools of type-writing and othermachines, and has for its object the provision of means for securelyattaching the ribbon to the spool and releasing it therefrom withoutliability of soiling the fingers during either operation.

In the accompanying drawings, Figure 1 is a plan View of a ribbon-spoolembodying my improvements. Fig. 2 is a vertical section on the line a'.fr of Fig. 1, and Fig. 3 is a vertical Fig. 4 is a front elevation ofthe spool shown in the foregoing figures. Fig. 5 is a plan view, Fig. 6a longitudinal section, and Fig. 7 a front elevation, of. aribbon-spool, showing a'modilied form of my invention. Fig. 8 is asection longitudinal of the core, and Fig. 9 a front elevation of afurther modification of my invention. g

Like parts are designated by like numerals of reference throughout thedrawings.

Referring now to Figs. 1 to 4, inclusive, the forward flange of theribbon-spool is designated as 1, the rear flange as 2, and the core as3. The core is here shown as a hollow tube of metal surrounding thespool -aXle, (not shown,) which passes through the holes 4 and 5 in thelianges 1 and 2; but l do not desire to limit myself to this particularconstruction. The core is recessed or grooved longitudinally, as at 6,and the rear flange punched out or cut away, so as to provide an opening7 in register therewith to afford passage for theribbonre\f*erseactuating arm common to the No. 6 Remington machine,which arm and its associate mechanism, since they form no part of myinvention, are not shown in the drawings. Opposite the recess 6 there isasmaller longitudinalrecess or depression 8 in. the surface of tube orcore 3. In the bottom of recess 8 are holes 9, formed to receive theteeth or serrations 10 of a clamping-bar or latch 11, pivoted in thelugs 12, formed on the outer face ofthe rear flange 2. Near the pivot ofthe bar 11 and preferably bearing in a notch or indentation therein isthe end 13 of a wire spring 14, which is coiled about a pin or rivet 15in the rear iange 2. The other end 16 of the spring 14 passes through asmall hole in the rear flange of the spool, and the constant tendency ofthe spring is to force the clamping-bar 11 outwardly and laterally aboutits pivot, viewed as in Fig. 2. When the end of the ribbon 17 is placedupon the core 3, the toothed or serrated bar or clamp 11 is swung downagainst the tension of its spring 14 toward the core 3, the free end ofthe bar passing through a cut or opening 18 in the forward fiange 1. Thebar enters the recess 8 and finally after the teeth or serrations 1()have entered the holes 9, thus securely attaching the ribbon 17 to thespoolcore, the bar is locked down by a springcatch 18a. This springcatch or lock 18u is shown as a piece of spring metal having a cut oropening 19 and riveted at 20 to the front flange 1, the rivets normallyholding the catch in contact with the front or forward flange 1. As theclamp 11 is pressed down through the opening 18 a nose 21, formed on theend @L /Li the 'clamp or latch, contacts with the spring catch or lock18 and forces it away from the fiange 1 until the nose 21 has whollyentered the opening 19, whereupon the catch 18 springs back against thefiange 1. In this peitop, which is preferably bent, as at 22, to af forda good hold, and pulled away from the iiange 1, thus releasing thetoothed clampingbar 11, which moves about its pivot at 12 and away fromthe core 3 under the action of spring 14. I preferably slit or cut therear flange 2 in the plane ofthe clamping-bar 11, as shown at 23, sothat the said clamping-bar may be revolved longitudinally of the coreabout its pivot, as shown by the dotted lines in Fig. 2, sufficiently toenable the ribbon to be easily detached and removed. It'will be apparentthat while the bar is in the dottedline position of Fig. 2 the free endofthe ribbon to be attached may be laid across the recess 8, after whichthevclamp or bar l1 is pressed into the recess and locked by the catch18a. This manipulation of the ribbon to attach or detach it from theribbon-spool of the type-writer may be accomplished with despatch andcleanliness. The clamping-bar having been revolved about its pivot awayfrom the core to the position shown by dotted lines in Fig. 2, the coreis left entirely unobstructed and it is necessary merely to lay theribbon upon the spool preliminary to clamping it. This movement of theribbon is to be distinguished from thel movement required in connectionwith other ribbon-attaching devices, wherein it is necessary to threadthe ribbon longitudinally through the space between the attaching deviceand the spool-core. Another advantage of my invention is that inoperative position no part of the clamp stands above the periphery oit'the spool drum or core. This conduces to a smooth, even, and closewinding of the ribbon, a matter which becomes ot' importance when, asfrequently happens, a copying-ribbon and a record ribbon are pinnedtogether and wound upon the spool, thus doubling the usual length ot'the ribbon.

Passing now to Figs. 5, 6, and 7, I therein show my invention inconnection with the ordinary wooden-cored spool ot' the N o. 6 Remingtontype-writer. The wood core 24 is recessed at 25, and the metal plate 26is secured to the bottom of recess 25 with ordinary woodscrews. Holes 27in the plate 26 register with holes 28 in the wooden core, and intothese holes pass the teeth of the clamp or latch 29, which is pivoted at30 in the upturned end 3l of, the plate 26. Spring 32, whose ends aresecured in holes in clamp 29 and plate 26, tends to revolve the clamp 29in the direction of the arrow in Fig. 6, and spring-catch 33, formed byslitting the forward flange along lines 34 and 35, Fig. 7, serves toretain bar 29 in engagement with holes 27 and 28.

Figs. 8 and 9 show a construction differing only from the immediatelypreceding in the form ol the locking means for the ribbonattaching clampor bar. The lock is here shown in the form of a spring 36, attached tothe front flange by a screw 37 and having a horizontal or laterally-bentportion 38, which passes over the ribbon-attaching clamp when it is indepressed position. The spring 36 when moved in the direction of thearrow in Fig. 9 to the opposite side of slot 39 in the flange, throughwhich it passes, 'frees the ribbon-attaching clamp or bar, as in theother constructions.

Many other changes in details of construction and arrangement may ofcoarse be made within the scope of my invention. For eX- ample, while Ihaveshown the ribbon-clamp in the form of a toothed bar other forms ofclamp may be substituted therefor.

What I claim as new, and desire to secure' by Letters Patent, is-

1. In a ribbon-spool, the combination of ribbon -attaching meansconstantly springpressed away from the spool-core, and anindependently-movable catch for said means.

2. In a ribbon-spool, the combination of a pivoted ribbon-clampconstantly tending to revolve about its pivot away 'from the spoolcore,and independent spring-pressed means for controlling said clamp.

3. In a ribbon-spool, the combination of a pivoted ribbon-clamp, a`spring constantly tending to revolve it, away from the spoolcore, andan independently-movable springcatch adapted to retain the clamp inoperative position against the tension of its spring.

4. In a ribbon-spool, a ribbon-clamp pivoted at one side of the spooland retained in operative position by independently movable means at theother side of the spool.

5. In aribbon-spool, aribbon-clamp pivoted outside one fiange of thespool and locked in operative position by means connected with the otherflange.

6. In a ribbon-spool, the combination of a ribbon-clamp pivoted at oneside of the spool, a spring acting on said clamp, and an independentspring-catch at the other side of the spool adapted to lock the clampagainst the action of its spring.

7. In a ribbon-spool, the combination of a pivoted clamp which inoperative position is substantially within the cylindrical surface ofthe core between the flanges, and independent means operable outside theends ot' the spool to hold the clamp in working position.

8. In a ribbon-spool, the combination ot' a pivoted clamp which inoperative position is held within a recess in the spool-core so as toIOO IIO

be wholly within the cylindrical surface of the core between the`flanges, and independent means operable outside the ends of the spoolto hold the clamp in working position.

9. In a ribbon-spool, the combination of a plate 26, a spring-mountedclamping-bar pivoted therein, a retaining-latch for the clamping-bar,and means for attaching the plate 26 to the spool-core.

10. In a ribbon-spool, the combination of a plate 26, a spring-mountedclamping-bar pivoted therein, a retaining-latch formed in thespool-flange, and means for attaching the plate 26 to a recess in thespool-core.

ll. The combination, with a ribbon-spool comprising a core and endflanges, of a clampin g-bar pivoted at one of said anges and means atthe other of said flanges for holding said clamping-bar in clampingposition.

12. The combination with a ribbon-spool comprising a core and endflanges, of a clamping-bar pivoted at one of said flanges, means at theother of said flanges for holding said bar in clamping position and aspring for throwing said bar outwardly when released from clampingposition.

13. In a ribbon-spool, having a eore and end flanges, a pivoted toothedClamp, the teeth of which in operative position rest in holes ordepressions in the bottom of a recess for the clamp in the spool-Core,inwhioh position the entire clamp is substantially within theeylindrieal surface of the core between the flanges.

14. The combination with a ribbon-spool having a Core and end flanges,of a toothed clamping-bar pivoted at one of said flanges and means atthe other of said ianges for retaining said clamping-bar with its teethin holes or depressions in the bottom of a recess in the spool-core.

15. The combination with a ribbon-spool, of a pivoted elampingbararranged to swing lengthwise of the spool, and an independentlymovableCatch for holding the bar in clamping position, said catch beingoperable outside the ends of the spool.

Signed at Louisville, in the county of Jefferson and State of Kentucky,this 27th day of February, A. D. 1904.

WALTER J. LYTER.

Witnesses FLOYDE I. JEFFERSON, P. E. ALLIsoN.

